Hi, my son has low testosterone ( 5.6 nmol/L ; normal range listed as 8.4 and 28.8). He is not growing (currently 151cm) and a bit overweight, despite exercising ( competitive sport 18hours a week). We are seeing the doctor in 10 days, but I was hoping to get some details here regarding remedies, info. I am worried and googling this is not helping. He is getting bullied at school and it breaks my heart. He is 13 year 10 months old. Thank you.